The easiest answer is to check the Market Wards. (I think in Uldah, they're called "The Dunes" on your map.) Use the "item search" feature to look for the sword you want, and it will list the prices at which the swords are available, and which wards the guy selling it is located in. Find the one you want, then just teleport in, find that guy, and buy it from his bazaar.
Here's
Yellow Gremlin's list of Gladiator weapons. Two things you can see from this list.
First, the starter sword is level 1. The next lowest sword is a Bronze Gladius, which has an optimal rank of level 6. That means if you use it before you get to level 6, you won't get the full benefit of its stats (often making it worse than a lower ranked weapon) and it will become damaged more quickly (meaning you'll have to repair it more often). Of course, the first few levels tend to fly by really fast, so it might not be too bad to go ahead and buy one of those. But as a general matter, I wouldn't use a weapon or tool that's a higher rank than you.
Second, over to the right of each weapon is a list of the NPCs selling the weapons, and the price at which they're selling the weapons. So Reluctant Boar is selling bronze gladii for 13,200 gil. If you click on Reluctant Boar's name, it will show you where he's located.
If you found an NPC selling a sword for 67K gil, that was probably a level 16 sword. I wouldn't try to use that until you've gotten up to level 16.
Money's actually pretty easy to come by in this game. In fact, SE is trying to make it more difficult to get money. Stick with it, and by the time you're at level 30, you'll probably have millions of gil to spend.Well, different servers are "unofficially" associated with different things. Like I heard that there's an "unofficial" Aussie server, and there's an "unofficial" role-play server. But generally, every server is open to everyone in the world. So you'll have people from all time zones on every server. Again, you can check Yellow Gremlin. But in case you're too lazy, there's an NPC named
Tataroga that sells starter botany and fishing equipment. And you can buy starter mining tools from the Miner's Guild.
Good luck!